I belive its 18cm,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Acute angle < 90°
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Reason: if you subtract 3 on both sides of the equal sign that will leave you with 7.
Let, the width = x
Length = x + 1
It is given that, 18 = 2(x+1+x)
18 = 2(2x+1)
18 = 4x + 2
4x = 18 - 2
x = 16 / 4
x = 4
& x+1 = 5
In short, Your dimensions would be: 5 × 4 Feet
Hope this helps!
